Writing · 2 articles
Notes on backends, asynchronous workflows, and how distributed pieces fit together in real projects—including tradeoffs when things slow down, disappear, or get delivered twice.
A step-by-step architecture for integrating Paddle into a any backend with internal subscription state, idempotent webhook handling, stale-event protection, and clear billing vs authorization boundaries.
Design notes on a Spring Boot + Kafka + PostgreSQL job platform with resilient state, callbacks, and clear separation between API and workers.